Politicians and their mics

Goodness gracious. When will people learn that they should watch themselves whenever they are ANYWHERE near a mic or a camera? It could be on, people!

Here's Carly Fiorina making fun of Barbara Boxer's hair. It happens in the last 20 seconds or so. Forward to about 4:00. I like the look on her face when I presume that someone off camera reminds her that she's being recorded. (Also, from earlier in the tape...Carly, learn to cover your mouth when you yawn.)